Inventor
Frederick Wells Leavitt
Inventor
Amherst, NY, US
Overview
Patents· 28 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
B01Dprimary
B01DSeparation35%
B01JChemical or physical processes, e.g. catalysis or colloid chemistry19%
Y02CCapture, storage, sequestration or disposal of greenhouse gases [ghg]15%
C01BNon-metallic elements8%
Y10STechnical subjects covered by former uspc cross-reference art collections [xracs] and digests8%
C01DCompounds of alkali metals, i.e. lithium, sodium, potassium, rubidium, caesium, or francium5%
B82YSpecific uses or applications of nanostructures3%
G01NInvestigating or analysing materials by determining their chemical or physical properties3%
F25JLiquefaction, solidification or separation of gases or gaseous or liquefied gaseous mixtures by pressure and cold treatment or by bringing them into the supercritical state2%
Y02PClimate change mitigation technologies in the production or processing of goods2%
PatentTitleYear
6,506,234'Pressure swing adsorption gas separation method, using adsorbents with high intrinsic diffusivity and low pressure ratios'20036,500,234'Rate-enhanced gas separation'20026,500,235'Pressure swing adsorption process for high recovery of high purity gas'20026,475,265'Pressure swing adsorption method for production of an oxygen-enriched gas'20026,245,127'Pressure swing adsorption process and apparatus'20016,218,327'Mixed cation adsorbent having substantially uniform cation distribution'20016,027,548'PSA apparatus and process using adsorbent mixtures'20005,989,314'Pressure swing adsorption air prepurifier'19995,958,817'Adsorbent production with single pass ion exchange'19995,871,565'Vacuum/pressure swing adsorption (VPSA) for production of an oxygen enriched gas'19995,833,844'Thermally-driven ion-exchange process for lithium recovery'19985,810,909'Adsorption process and system using multilayer adsorbent beds'19985,769,928'PSA gas purifier and purification process'19985,766,311'Multi-thermal pulse PSA system'19985,759,242'Radial bed vaccum/pressure swing adsorber vessel'19985,711,787'Oxygen recovery pressure swing adsorption process'19985,681,477'Thermally-driven ion-exchange process for lithium recovery'19975,674,311'Adsorption process and system using multilayer adsorbent beds'19975,604,169'Process for producing mixed-cation zeolites'19975,453,112'Pressure swing adsorption heat recovery'19955,451,383'Lithium recovery'19955,415,683'Vacuum pressure swing adsorption process'19955,407,465'Tuning of vacuum pressure swing adsorption systems'19955,169,413'Low temperature pressure swing adsorption with refrigeration'19925,163,978'Dual product pressure swing adsorption process and system'19925,085,674'Duplex adsorption process'19925,074,892'Air separation pressure swing adsorption process'19914,810,265'Pressure swing adsorption process for gas separation'1989Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
1989Patents assigned to UNION CARBIDE CORP (1)· patent assignee history
1989–1992Based in North Tonawanda, NY, US· patent location history
1991–1992Patents assigned to UNION CARBIDE IND GASES TECH (2)· patent assignee history
1992–2003Patents assigned to PRAXAIR TECHNOLOGY INC (25)· patent assignee history
1995–2003Based in Amherst, NY, US· patent location history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| PRAXAIR TECHNOLOGY INC | 25 | 1992–2003 |
| UNION CARBIDE IND GASES TECH | 2 | 1991–1992 |
| UNION CARBIDE CORP | 1 | 1989 |
Locations
| Location | Patents | Span |
|---|---|---|
| Amherst, New York, US | 23 | 1995–2003 |
| North Tonawanda, New York, US | 5 | 1989–1992 |